“One of our junior journalists was somehow able to press the exact sequence, and perfectly timed live insert panel to insert studio 42 into the stream 1. I kid you not” an NPR engineer wrote in an email seen by blog Gawker. “Feel free to giggle at will.”

According to the email the signal went dead on certain NPR stations at 11:04 on Friday and stayed that way for one minute and 13 seconds.

Gawker reported that Isabel Lara, NPR’s director of media relations, confirmed the outage. The broadcaster has not revealed how many stations were affected.

“During a bring your kids to work day tour today, some of our junior visitors pressed some buttons that affected a portion of the 11am ET newscast that can be heard on a limited number of West Coast stations Not all stations were affected,” she said. “It was an educational day for us as well as our kids.”